JPS608083A - Heat sensitive recording thermal head - Google Patents

Heat sensitive recording thermal head

Info

Publication number
JPS608083A
JPS608083A JP11631083A JP11631083A JPS608083A JP S608083 A JPS608083 A JP S608083A JP 11631083 A JP11631083 A JP 11631083A JP 11631083 A JP11631083 A JP 11631083A JP S608083 A JPS608083 A JP S608083A
Authority
JP
Japan
Prior art keywords
heating element
common electrode
base
end surface
face
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11631083A
Other languages
Japanese (ja)
Inventor
Keizaburo Kuramasu
敬三郎 倉増
Kiyoharu Yamashita
清春 山下
Masaji Arai
荒井 正自
Yoshiteru Namoto
名本 吉輝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11631083A priority Critical patent/JPS608083A/en
Publication of JPS608083A publication Critical patent/JPS608083A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/345Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads characterised by the arrangement of resistors or conductors

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To improve the workability such as the connecting characteristics of electrode and semiconductor element or the like and to raise its heat dissipating characteristics, by a method wherein the common electrode drawn extending it to the opposing end surface part is fixed to the side of projection part of base by pressure contact of common electrode out going lead via elastic materials. CONSTITUTION:The common electrode 81 is formed on the end surface forming a heating resistance film to the opposing end surface part and the heating element substrate 70 is constructed. The heating element substrate 70 is fixed by adhesives 11 and both ends fixing press plate 75 so that the common electrode going out lead 74 is pressure-contacted at the doubling part 74a of end surface part by elastic materials 76 such as rubber provided at the projection part of base 78 or the like. All surface of heating element substrate 70 sticks fast to the base 78 and if resin of good thermal conductivity is used for the substrate 70, its heat dissipating characteristics are further improved.

Description

【発明の詳細な説明】 産業上の利用分野 感熱記録方式は保守が容易であることからファ2 ペー
ジ クシミリをはじめ多くの端末用プリンターとして利用さ
れている。更に、近年感熱転写方式の開発がなされ、多
色記録あるいはフルカラー記録も可能となり、新しい記
録機器としての展開も外されている。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Use The thermosensitive recording method is easy to maintain, so it is used in many terminal printers including F2 page printers. Furthermore, in recent years, thermal transfer methods have been developed, making it possible to perform multi-color recording or full-color recording, and the development of new recording equipment has also been ruled out.

本発明は多色あるいはフルカラー記録を可能とする感熱
転写記録方式において有用とされるサーマルヘッド、具
体的には多数の発熱体を一列に発熱体基板の端面に形成
した端面型サーマルヘッドの構造に関する。
The present invention relates to a thermal head that is useful in a thermal transfer recording system that enables multi-color or full-color recording, and specifically relates to the structure of an edge-type thermal head in which a large number of heating elements are formed in a row on the end surface of a heating element substrate. .

従来例の構成とその問題点 第1図に従来の単色記録に多く用いられているサーマル
ヘッドと記録紙の関係を示す。
Structure of a conventional example and its problems FIG. 1 shows the relationship between a thermal head and recording paper, which are often used in conventional monochromatic recording.

第1図において、11Lは受像紙で1bは転写紙であり
、本構成においては受像紙1aと転写紙1bは一体とな
り記録紙1を形成している。2は紙送り用ローラ、3は
サーマルヘッドで、発熱体基板3aの2つの主平面の一
方の面上に発熱体列3bを形成して構成されている。こ
の形のヘッドを以下平面型サーマルヘッドトヨフ。
In FIG. 1, 11L is an image receiving paper, and 1b is a transfer paper. In this configuration, the image receiving paper 1a and the transfer paper 1b are integrated to form the recording paper 1. Reference numeral 2 denotes a paper feeding roller, and 3 a thermal head, each of which has a heating element row 3b formed on one of the two main planes of a heating element substrate 3a. This type of head is referred to as the flat type thermal head Toyofu.

3 ページ 第1図において、紙送りローラ2で受像機1aと転写紙
1bをサーマルヘッド3の発熱体列3bに圧接させて矢
印の方向に送りながら、発熱体列3bを画信号に従って
加熱すると、受像紙1a上に単色の記録を行うことがで
きる。
3 In FIG. 1 on page 3, when the image receiver 1a and the transfer paper 1b are brought into pressure contact with the heating element row 3b of the thermal head 3 in the direction of the arrow by the paper feed roller 2, and the heating element row 3b is heated according to the image signal, Monochromatic recording can be performed on the image receiving paper 1a.

第1図は転写型記録を示しているが、受像紙1aと転写
紙1bの代りに直接発色型の感熱記録紙を用いると、通
常の感熱記録方式の記録が行える。
Although FIG. 1 shows transfer type recording, if direct coloring type thermal recording paper is used instead of image receiving paper 1a and transfer paper 1b, normal thermal recording type recording can be performed.

これに対して、本発明では第2図に示すような記録部を
構成できる。
In contrast, in the present invention, a recording section as shown in FIG. 2 can be configured.

第2図において、サーマルヘッド3′は発熱体基板3a
の厚さ方向に平行な4つの面の1つの面(端面)に発熱
体列3bを形成して構成される。
In FIG. 2, the thermal head 3' is a heating element substrate 3a.
The heating element row 3b is formed on one of the four surfaces (end surface) parallel to the thickness direction of the heating element.

以下では第2図に示す構成のヘッドを端面型サーマルヘ
ッドとよぶ。
Hereinafter, the head having the configuration shown in FIG. 2 will be referred to as an end-face type thermal head.

第1図と第2図の比較から判るように、単色の感熱転写
記録方式においても、端面型サーマルヘッドを用いて記
録部を構成する方が記録状態を速く見ることができるし
、記録紙を有効に利用できる利点を有1−ている。また
、第1図と第2図に示した記録紙1は受像紙11Lと転
写紙1bを一体として構成した場合であるが、一般的に
は受像紙ILと転写紙1bは別々の送り機構から送られ
てきてサーマルヘッドで圧接するように構成する。この
ような場合には、端面型サーマルヘッドの方が装置設計
上非常に有利である。
As can be seen from the comparison between Figures 1 and 2, even in the monochrome thermal transfer recording system, it is possible to see the recording state more quickly and to use an edge-type thermal head to configure the recording section. It has the advantage of being able to be used effectively. Furthermore, the recording paper 1 shown in FIGS. 1 and 2 is a case in which the image receiving paper 11L and the transfer paper 1b are integrated, but in general, the image receiving paper IL and the transfer paper 1b are fed by separate feeding mechanisms. It is configured so that it is sent and pressed into contact with the thermal head. In such a case, an end face type thermal head is very advantageous in terms of device design.

さらに、感熱転写記録方式でカラー記録をする場合、端
面型サーマルヘッドでは第3図に示すように簡単な構成
で多色ドツトの色ずれの問題を解消できる。
Furthermore, when color recording is performed using the thermal transfer recording method, the problem of color misregistration of multicolor dots can be solved with a simple configuration as shown in FIG. 3 using an edge-type thermal head.

第3図において、受像紙11Lは紙送りローラ2に巻き
つけて固定されており、この状態で受像紙1aはサーマ
ルヘッド3′の発熱体列(紙と接触する端面に設けであ
る。図示せず)に転写紙1bを介して圧接され、ローラ
2の回転とともに受像紙1bを矢印の方向に送る。転写
紙1bにはシアンC,マゼンタM、イエローYとブラッ
クBが受像紙と同一幅で、かつローラ2を1回転する長
さと略々同一の長さで図示するように順次塗布されてい
る。なお、転写紙に形成する上記の塗布層の5 ページ 順番は用いる染料や顔料等のインクの条件により変る。
In FIG. 3, the image-receiving paper 11L is wrapped around the paper feed roller 2 and fixed, and in this state, the image-receiving paper 1a is placed on the heating element array of the thermal head 3' (provided on the end surface that contacts the paper. The image receiving paper 1b is pressed against the image receiving paper 1b via the transfer paper 1b, and as the roller 2 rotates, the image receiving paper 1b is sent in the direction of the arrow. Cyan C, magenta M, yellow Y, and black B are sequentially coated on the transfer paper 1b to have the same width as the image receiving paper and a length that is approximately the same as the length of one revolution of the roller 2, as shown. The order of the five pages of the above-mentioned coating layers formed on the transfer paper varies depending on the conditions of the ink such as dye and pigment used.

紙送りローラの1回転毎にシアン、マゼンタ、イエロー
、ブラックの各色の転写(画信号に従って発熱体を加熱
し転写紙−にの染料又は顔料の加熱された部分のみを受
像紙に印刷する操作)を行うとカラー記録ができる。
Transfer each color of cyan, magenta, yellow, and black with each rotation of the paper feed roller (an operation that heats a heating element according to the image signal and prints only the heated portion of the dye or pigment on the transfer paper onto the receiving paper) If you do this, you can record in color.

受像紙をローラに巻きつけて用いることの特長は図示す
るように装置機構が簡単であす、シかも各色の重ね合わ
せ位置の調整は紙送りローラの回転位置により簡単にか
つ確実に行えることである。
The advantage of using image-receiving paper wrapped around a roller is that the device mechanism is simple, as shown in the figure, and the overlapping position of each color can be easily and reliably adjusted by adjusting the rotational position of the paper feed roller. .

第1図に示した平面型ヘッドを用いても第3図に示すよ
うな記録部を構成することは可能である。
Even if the planar head shown in FIG. 1 is used, it is possible to construct a recording section as shown in FIG. 3.

但し、この場合には第」図のサーマルヘッドノ発熱体が
形成されている面において、発熱体が形成されている部
分以外は受像紙や転写紙あるいはローラに接触しないこ
とが必要となる。この制限は従来の平面型ヘッドでは大
きな問題点となる。
However, in this case, it is necessary that the surface of the thermal head shown in FIG. This limitation is a major problem with conventional planar heads.

即ち、従来の平面型サーマルヘッドでは第1図に示すよ
うに、発熱体基板31Lの発熱体列3bを形成した面に
カバー30と3dが設けられている〇6 ページ このカバーは発熱体列3bの加熱を容易にするだめの各
発熱体に接続されている半導体素子あるいは発熱体の電
極部に接続されているリード線等を機械的に保護する目
的で設けられる。
That is, in the conventional planar thermal head, as shown in FIG. 1, covers 30 and 3d are provided on the surface of the heating element substrate 31L on which the heating element row 3b is formed. It is provided for the purpose of mechanically protecting the semiconductor elements connected to each heating element of the tank or the lead wires connected to the electrodes of the heating elements.

一方、第3図に示す方法でカラー記録を行うには、受像
紙1aを巻きつけるローラの外周の長さは少なくとも記
録画面の短辺よりは長いことが必要である。第1図に示
すような単色記録の場合には通常ローラ径は直径20際
程度であるのに対して、第3図の方法で86版の記録を
行うためにはローラ径として直径約5QMとすることが
必要となる。このローラ径は記録紙が大きくなるととも
に犬きく々る。
On the other hand, in order to perform color recording using the method shown in FIG. 3, the length of the outer periphery of the roller around which the image receiving paper 1a is wound must be at least longer than the short side of the recording screen. In the case of monochromatic recording as shown in Fig. 1, the roller diameter is usually about 20cm in diameter, whereas in order to record 86 plates using the method shown in Fig. 3, the roller diameter is about 5QM. It is necessary to do so. The diameter of this roller increases as the size of the recording paper increases.

この結果、第3図のような記録部を平面型ヘッドで構成
するには発熱体基板3&を単色、記録用の場合に比べて
大きくしなければならなくなる。
As a result, in order to configure the recording section as shown in FIG. 3 with a flat head, the heating element substrate 3& must be made larger than that in the case of a monochromatic recording device.

発熱体基板を大きくすることはヘッドの価格を大きく増
加させることになるとともにカラー記録装置自体も太き
く、かつ価格も上昇する。
Increasing the size of the heat generating substrate greatly increases the price of the head, and also increases the size and cost of the color recording device itself.

また、もう1つの問題点として次の点がある。In addition, there is another problem as follows.

7 ページ カラー記録においてはヘッドの発熱体列は非常に均一な
圧接力で転写紙と受像紙に接することが要求されるのに
対して、これを満足するような平坦度を平面型ヘッド用
の発熱体基板で得ることは困難である。
7 In page color recording, the heating element row of the head is required to contact the transfer paper and the image receiving paper with very uniform pressure contact, but the flatness that satisfies this is required for the flat head. It is difficult to obtain this with a heating element substrate.

一方、端面型ヘッドでは第3図に示すようにローラ径が
変わってもヘッド形状は影響されず、小型に作成できる
。しかも、発熱体列は端面に形成することから平坦度を
確保することも可能である。
On the other hand, as shown in FIG. 3, with an end-face type head, the head shape is not affected even if the roller diameter changes, and the head can be made smaller. Moreover, since the heating element array is formed on the end face, it is possible to ensure flatness.

このように端面型サーマルヘッドは特に感熱転写記録方
式に用いる場合に有用であるが、従来の平面型サーマル
ヘッドに比較してその作成は困難である。その主な理由
は次の点である。第1に平板の端面かも両生平面への連
続したパターンの形成技術、第2に発熱体基板の放熱性
、第3に共通電極リードの取出し方法および個別電極と
半導体素子の接続方法、等がある。
As described above, edge-type thermal heads are particularly useful when used in thermal transfer recording systems, but they are more difficult to manufacture than conventional planar-type thermal heads. The main reasons are as follows. The first is the technology for forming a continuous pattern on the end face of a flat plate, or the bidirectional plane, the second is the heat dissipation of the heating element substrate, and the third is the method for taking out the common electrode lead and the method for connecting the individual electrodes and semiconductor elements. .

第4図にて従来の平面型サーマルヘッドの実装。Figure 4 shows the implementation of a conventional planar thermal head.

組立の一例を示す。な;l’、−1第4図は半導体素子
としてシフトレジスタとラッチ機能を有する駆動回路を
もつI(3を用いて、このICを発熱体の個別電極とフ
ィルムキャリヤにより接続したものである。第4図にお
いて、431Lはガラスをグレーズしたアルミナ基板、
43bは発熱体、430は共通電極、43fは個別電極
、44は共通電極引出しリード、46は半導体素子、4
6はフィルムキャリヤ、47はプリント基板、48は基
台、49は共通電極43eと共通電極引出しり−ド44
との半田例は部である。なお、発熱体上には耐摩耗保護
膜を設けるが図示していない。
An example of assembly is shown. l', -1 FIG. 4 shows an IC (3) having a drive circuit having a shift register and a latch function as a semiconductor element, and this IC is connected to the individual electrodes of a heating element by a film carrier. In Figure 4, 431L is an alumina substrate with glass glazed;
43b is a heating element, 430 is a common electrode, 43f is an individual electrode, 44 is a common electrode lead, 46 is a semiconductor element, 4
6 is a film carrier, 47 is a printed circuit board, 48 is a base, 49 is a common electrode 43e and a common electrode drawer 44.
An example of soldering with is part. Note that a wear-resistant protective film is provided on the heating element, but it is not shown.

シフトレジスタ、ラッチを含む駆動回路を一体化したI
Cを用いることにより同時に駆動する発熱体数を任意に
かえることができ、従ってダイオードマトリックス方式
に比べて印字速度を飛曜的に高めることができる。さら
に、本方式のヘッドでは共通電極4313は全発熱体に
共通して接続し、外部回路との接続は基本的には1本の
みで良く、リード線数を減らすこともできる。これらの
点から、今後のサーマルヘッドはICを用いるものが多
くなると考えられている。
Integrated drive circuit including shift register and latch
By using C, the number of heat generating elements driven simultaneously can be arbitrarily changed, and therefore the printing speed can be dramatically increased compared to the diode matrix method. Furthermore, in the head of this system, the common electrode 4313 is commonly connected to all the heating elements, and basically only one connection to an external circuit is required, and the number of lead wires can be reduced. From these points, it is thought that many future thermal heads will use ICs.

9 ページ しかし々から、同時駆動する廃熱体数を多くする場合に
は共通電極部分の抵抗値(Rcとする)を充分に小さく
することが非常に重要である。
From page 9, when increasing the number of waste heat bodies to be driven simultaneously, it is very important to make the resistance value (referred to as Rc) of the common electrode portion sufficiently small.

表に同時に駆動する発熱体数をかえた時に、Rcによる
発熱体に加わる電力の変動(Pn/P1)を示す。なお
、表中のnは同時駆動する発熱体数で、Riは発熱体抵
抗値である。
The table shows the variation (Pn/P1) in the power applied to the heating elements due to Rc when the number of heating elements driven simultaneously is changed. Note that n in the table is the number of heating elements driven simultaneously, and Ri is the resistance value of the heating elements.

表から判るように、同時駆動する発熱体数が256ドツ
トとすると、Rcが発熱体抵抗値(R,R)の0.1%
でも256ドツト同時に発熱させる場合には1ドツトの
みを発熱させる場合の電力に対して10ページ o、63倍に低下し、印字濃度が大きく変化する。
As can be seen from the table, if the number of heating elements driven simultaneously is 256 dots, Rc is 0.1% of the heating element resistance value (R, R).
However, when 256 dots are simultaneously heated, the power is reduced by 10 pages, or 63 times, compared to when only one dot is heated, and the print density changes greatly.

このように発熱体に加わる電力が変動することはカラー
記録の画質に非常に大きな悪影響を与える。
Such fluctuations in the power applied to the heating element have a very large adverse effect on the image quality of color recording.

カラー記録では各発色ドツトの大きさとその濃度を制御
することが必要であり、Rcは発熱体抵抗値(RH)の
0.01%程度とすることが要求されるようである。
In color recording, it is necessary to control the size and density of each colored dot, and it appears that Rc is required to be approximately 0.01% of the resistance value (RH) of the heating element.

このような要求のために第4図に示す従来の平面型サー
マルヘッドでは、充分に抵抗の小さな共通電極引出しリ
ードを比較的小さな間隔毎に発熱体基板の共通電極43
f3に半田付け49を行いRCを小さくし、印字濃度の
変化を防止している。
In order to meet such requirements, in the conventional planar thermal head shown in FIG.
Soldering 49 is applied to f3 to reduce RC and prevent changes in print density.

ところで、端面に発熱体を形成するヘッドは、例えば、
ガラス丸棒の円周面上に発熱体と電極を形成したヘッド
、半導体シリコン単結晶基板端面に拡散により抵抗体を
形成したヘッド等がある。
By the way, the head in which a heating element is formed on the end face, for example,
There are heads in which a heating element and electrodes are formed on the circumferential surface of a round glass rod, and heads in which a resistor is formed by diffusion on the end face of a semiconductor silicon single crystal substrate.

しかしながら、これらのヘッドは放熱性、熱効率。However, these heads have poor heat dissipation and thermal efficiency.

高密度化等の点での問題点に加え−C上述の共通電極部
抵抗値を小さくできないことがら力)−記録用ヘッドと
しては適していない。
In addition to problems in terms of high density, etc. (C) the above-mentioned inability to reduce the resistance value of the common electrode portion, it is not suitable as a recording head.

11 ページ カ、ラー記録用端面型ヘッドとしては、本発明者らが考
え出した第6図に示すヘッドがある。第6図に示すベッ
ドは、′熱伝導率が良好で安価なアルミナ基板の端面と
1上平面にガラスグレーズした基板を使用し、薄膜形成
プロセスで発熱体と電極を形成した発熱体基板を用いた
ものである。本方式により先述の端面型ヘッドのパター
ン形成における問題点が解消される。
11. As an end face type head for page color and color recording, there is a head shown in FIG. 6 which was devised by the present inventors. The bed shown in Figure 6 uses a substrate with a glass glaze on the end surface and the top surface of an alumina substrate, which is inexpensive and has good thermal conductivity, and uses a heating element substrate on which a heating element and electrodes are formed using a thin film forming process. It was there. This method solves the above-mentioned problems in pattern formation of the edge type head.

この発熱体基板では、発熱体を形成すを端面をはさむ2
つの主平面に電極が形成されており、このため第5図に
示すような組立、実装を行ったものである。
In this heating element substrate, the end face of the heating element is sandwiched between two
Electrodes are formed on the two main planes, and therefore assembly and mounting are performed as shown in FIG.

第6図において、1oは端面に発熱体を設は基台8側に
共通電極を設けた発熱体基板、45は半導体素子、46
はフィルムキャリヤ、47はプリント基板、8は基台、
6oは共通電極引出しリードである。
In FIG. 6, 1o is a heating element substrate with a heating element on its end face and a common electrode on the base 8 side, 45 is a semiconductor element, and 46
is a film carrier, 47 is a printed circuit board, 8 is a base,
6o is a common electrode lead.

第6図に第6図の人−A′断面部を示す。第ε図と同一
番号は同一名称を示す。第6図において、11は絶縁の
ためおよび発熱体基板と基台を接着する接着層、12は
発熱体基板の共通電極と共通電極引出しリードを一定間
隔毎に半田付けする半田付は部、13は絶縁層、636
は共通電極、63fは個別電極、14は発熱抵抗体膜、
18は耐摩耗保護膜でこれらを含めて発熱体基板1’O
を構成する。
FIG. 6 shows a cross section taken along the line A' in FIG. The same numbers as in Figure ε indicate the same names. In FIG. 6, 11 is an adhesive layer for insulating and bonding the heating element board and the base, 12 is a soldering part for soldering the common electrode of the heating element board and the common electrode lead at regular intervals, and 13 is a soldering layer for bonding the heating element board and the base. is an insulating layer, 636
is a common electrode, 63f is an individual electrode, 14 is a heating resistor film,
18 is a wear-resistant protective film, including these, the heating element substrate 1'O
Configure.

共通電極引出しリード5oは基台の一部に設けた溝を通
して発熱体基板の共通電極と一定間隔毎に半田付けで接
続される。このような端面型ヘッドでは、第1に作業性
が悪い、第2に基台と接触する発熱体基板面積が小さく
なり放熱性が悪い、等の問題があった。
The common electrode lead 5o is connected to the common electrode of the heating element substrate at regular intervals by soldering through grooves provided in a part of the base. Such an end face type head has problems such as firstly poor workability and secondly poor heat dissipation due to the small area of the heating element substrate in contact with the base.

発明の目的 本発明は、電極、半導体素子の接続等の作業性を改善で
きるとともに、良好な放熱性を実現することを目的とす
る。
OBJECTS OF THE INVENTION It is an object of the present invention to improve the workability of connecting electrodes and semiconductor elements, and to achieve good heat dissipation.

発明の構成 端面型ヘッドでは電極膜を発熱体を形成する端面と2つ
の主平面に形成することは必須であるが、この場合電極
膜は、同時に発熱体を形成する端面13 ページ と対向する端面にも形成される。この対向端面部にまで
共通電極を延長して引き出すことは全く問題はない。ま
た、半導体素子をフィルムキャリヤで実装する場合、半
導体素子自体の放熱を良くするために基台に突起部を設
けてやることが必要である。
Constituent structure of the invention In the end face type head, it is essential to form the electrode film on the end face where the heating element is formed and the two main planes, but in this case, the electrode film is formed on the end face where the heating element is formed and the end face opposite to the end face where the heating element is formed. is also formed. There is no problem in extending the common electrode to this opposing end surface. Furthermore, when a semiconductor element is mounted using a film carrier, it is necessary to provide a protrusion on the base in order to improve heat dissipation from the semiconductor element itself.

本発明は、この対向端面部にまで延長して引き出した共
通電極を基台の突起部の側面にゴムなどの弾性材を介し
てフィルムリード又はリード線からなる共通電極引出し
リードを圧接して固定することにより構成する。
In the present invention, the common electrode extended to the opposing end surface is fixed to the side surface of the protrusion of the base by pressing a common electrode lead made of a film lead or a lead wire through an elastic material such as rubber. It consists of:

実施例の説明 第7図に本発明の一実施例を示す。第7図において、7
0は発熱体基板、46は半導体素子、46はフィルムキ
ャリヤ、47はプリント基板、48は基台974は共通
電極引出しリードで一部がおりまげられており曲げ部7
4!Lにより対向端面部の共通電極と圧接される。了6
は発熱体基板を基台78の突起部に押しつけるようにし
て固定する押え板で、ネジ77で基台に固定される。
DESCRIPTION OF EMBODIMENTS FIG. 7 shows an embodiment of the present invention. In Figure 7, 7
0 is a heating element substrate, 46 is a semiconductor element, 46 is a film carrier, 47 is a printed circuit board, 48 is a base 974, which is partially bent by a common electrode lead, and has a bent portion 7.
4! It is pressed into contact with the common electrode on the opposite end surface by L. Ryo6
is a holding plate that presses and fixes the heating element board against the protrusion of the base 78, and is fixed to the base with screws 77.

14ページ 76は共通電極引き出しリードを弾性的に圧接するため
のゴムである。
14 Page 76 is rubber for elastically pressing the common electrode lead.

第7図のB−B’線断面を第8図に示す。第8図におい
て、14は端面に形成した抵抗体膜、18は同じく端面
に形成し、抵抗体膜と電極を保護す6耐摩耗膜・6jf
は固別電極・8′は共通電極で、発熱体を形成した端面
に対向する端面部まで形成してあり、これらにより発熱
体基板70が構成されている。発熱体基板Toは基台の
突起部に設けたゴム76により共通電極引出しリード7
4を端面部のおり曲げ部742Lで圧接するように接着
剤11と両端の固定用脚え板で固定する。
FIG. 8 shows a cross section taken along line BB' in FIG. 7. In FIG. 8, 14 is a resistor film formed on the end face, and 18 is a wear-resistant film 6jf, which is also formed on the end face and protects the resistor film and the electrode.
A solid electrode 8' and a common electrode 8' are formed up to the end surface opposite to the end surface on which the heating element is formed, and these constitute a heating element substrate 70. The heating element substrate To is connected to the common electrode lead 7 by a rubber 76 provided on the protrusion of the base.
4 is fixed with the adhesive 11 and the fixing leg plates at both ends so as to be pressed together at the bent portion 742L of the end face.

第7,8図の構造では、発熱体基板の共通電極と外部回
路とを接続する共通電極引出しリードを圧接するのみで
接続できるため、作業性は大きく向上する。又、発熱体
基板Toは全面が基台78と密着させられることから放
熱性は良好となる。
In the structures shown in FIGS. 7 and 8, the common electrode lead for connecting the common electrode of the heating element substrate and the external circuit can be connected by simply press-contacting the common electrode, so that work efficiency is greatly improved. Further, since the entire surface of the heating element substrate To is brought into close contact with the base 78, heat dissipation is improved.

さらに゛、発熱体基板Toは押え板76で固定すること
から従来のような接着は不要であり、従ってより熱伝導
の良い樹脂の使用も可能であり、これ16ページ によっても放熱性を良くすることができる。
Furthermore, since the heating element board To is fixed with the holding plate 76, conventional adhesive is not required, and therefore it is possible to use a resin with better thermal conductivity, which also improves heat dissipation. be able to.

共通電極引出しり−ド74は発熱体基板の対向端面部の
共通電極と任意の位置で複数個所の圧接が自由に行える
。従って、共通電極部の抵抗値(Re)を充分小さくす
ることもでき、カラー記録用ヘッドとしての問題点は生
じない。
The common electrode drawer 74 can be freely pressed into contact with the common electrode on the opposite end surface of the heating element substrate at a plurality of arbitrary positions. Therefore, the resistance value (Re) of the common electrode portion can be made sufficiently small, and no problems arise as a color recording head.

さらに、発熱体基板70を圧接して固定後は従来のヘッ
ドと全く同様にフィルムキャリヤでの実装が可能である
ことも大きな利点である。
Another great advantage is that after the heating element substrate 70 is pressed and fixed, it can be mounted on a film carrier in exactly the same way as a conventional head.

なお、第9図に示すように基台78の一部に溝を設けて
、この溝の中に共通電極引出しリードT4の一部74b
をおり曲げてうめこむことでより確実に共通電極抵抗を
小さくできる。基台78に設ける溝はおり曲げた共通電
極引出しリードがうめこまれる広さで良いから、発熱体
基板の基台との接触面積はほとんど全面で接触している
のと同様で、従って放熱性を低下させるとともない。
As shown in FIG. 9, a groove is provided in a part of the base 78, and a part 74b of the common electrode lead T4 is inserted into this groove.
By bending and recessing the common electrode resistance, it is possible to more reliably reduce the common electrode resistance. Since the groove provided in the base 78 is wide enough to accommodate the bent common electrode lead, the contact area of the heating element board with the base is almost the same as that of the entire surface, and therefore heat dissipation is improved. As it decreases.

発明の効果 共通電極を充分抵抗の小さな共通電極引出しリードで複
数個所の圧接により外部回路と接続ができ、サーマルヘ
ッドの組立における作業性が大きく向上する。又、共通
電極部の抵抗値は充分小さくできるからカラー記録用ヘ
ッドとしての問題は全く生じない。使用時には圧接部を
より押すようになることがら圧接部の接触抵抗の問題は
全く生じないことは大きな利点である。
Effects of the Invention The common electrode can be connected to an external circuit by pressure contact at a plurality of locations using a common electrode lead with sufficiently low resistance, and workability in assembling the thermal head is greatly improved. Further, since the resistance value of the common electrode portion can be made sufficiently small, no problems arise as a color recording head. It is a great advantage that the problem of contact resistance of the pressure contact part does not occur at all because the pressure contact part is pressed more during use.

さらに、発熱体基板は基台とほぼ全面にわたって密着可
能であり放熱性を良くできる。壕だ、発熱体基板は従来
のヘッドのように接着する必要がなく作業性の向上も図
れるとともに、熱伝導性の良い樹脂を用いることもでき
放熱性をさらに大幅に向上できる。また、発熱体の個別
電極と半導体素子の接続は従来のヘッドで行っているフ
ィルムキャリヤ方式がそのまま使用できるととから、新
しい設備投資が不要で信頼性ある実装ができる点におい
てもヘッドの低コスト化、高信頼化に対して大きな効果
を有する。
Furthermore, the heating element substrate can be in close contact with the base over almost the entire surface, improving heat dissipation. In fact, the heating element substrate does not need to be glued like in conventional heads, improving workability, and it is also possible to use resin with good thermal conductivity, further improving heat dissipation. In addition, since the film carrier method used in conventional heads can be used to connect the individual electrodes of the heating element and the semiconductor elements, the cost of the head is low in that new equipment investment is not required and reliable mounting is possible. It has a great effect on increasing reliability and reliability.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来の平面型ヘッドにより発色型感熱¥′″c
0記録又は単色感熱転写記録を行う場合の模17ページ 式図、第2図は端面型ヘッドを用いて単色感熱転写記録
又は発色型感熱紙での記録を行う場合の模式図、第3図
は端面型ヘッドを用いてカラー感熱転写記録を行う場合
の模式図、第4図は従来の平面型サーマルヘッドのフィ
ルムキャリヤ方式で実装したヘッド構造を示す図1、−
第6図は平板状の端面に発熱体を一形盛したヘラi゛の
フィルムキャリヤ方式で実装した従来図テ参傘、第6図
は第舎図のヘッドの五−五′線断面形状を示す図、第7
図および第9図は本発明を一実施例のサーマルヘッドを
示す図、第8図は第7図の73−’B’線断面形状を示
す図である。 46・・・・・・半導体素子、46・・・・・・フィル
ムキャリア、47・・・・・・プリント基板、70・・
・・・・発熱体基板、74・・・・・・共通電極引出し
リード、741L・・・・・・折り曲げ部、76・・・
・・・押え板、76・・・・・・ゴム、78・・・・・
・基台。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名@ 
1 図 @2図 第3図 第5図 第6図 第8図 5
Figure 1 shows color-forming thermal sensitivity using a conventional flat head.
17-page schematic diagram for performing 0 recording or monochrome thermal transfer recording, FIG. 2 is a schematic diagram for performing monochrome thermal transfer recording or recording on color-forming thermal paper using an edge type head, and FIG. FIG. 4 is a schematic diagram of color thermal transfer recording performed using an edge-type head; FIG.
Figure 6 shows a conventional umbrella mounted using the film carrier method in which a heating element is mounted on the end face of a flat plate. Figure shown, 7th
9 and 9 are views showing a thermal head according to an embodiment of the present invention, and FIG. 8 is a view showing a cross-sectional shape taken along line 73-'B' in FIG. 7. 46... Semiconductor element, 46... Film carrier, 47... Printed circuit board, 70...
...Heating element board, 74...Common electrode extraction lead, 741L...Bending portion, 76...
...Press plate, 76...Rubber, 78...
・Base. Name of agent: Patent attorney Toshio Nakao and 1 other person @
1 Figure @2 Figure 3 Figure 5 Figure 6 Figure 8 Figure 5

Claims (1)

【特許請求の範囲】[Claims] 電気的絶縁性平板の端面に列状に形成した発熱体と前記
端面をはさむ2つの主平面の1主平面に前記端面より延
長して形成した個別電極およ゛び前記端面より他の1主
平面を通して前記端面と対向する端面部にまで延長して
形成した共通電極よりなる発熱体基板と、突起部を有し
この突起部の1側面部で弾性部材を介してフィルムリー
ドまたはリード線を前記対向端面部の共通電極と圧接固
定する基台とを有し、かつ前記発熱体の各々を駆動する
半導体素子を一体化接続したフィルムキャリヤにより前
記発熱体の個別電極と前記基台上に絶縁性基材を介して
設けた複数導体とを接続してなる感熱記録用サーマルヘ
ッド。
Heating elements formed in a row on the end face of an electrically insulating flat plate, individual electrodes formed on one of the two main planes extending from the end face on one of the two main planes sandwiching the end face, and one main plane other than the end face. A heating element substrate comprising a common electrode extending through a plane to an end surface opposite to the end surface, and a protrusion, and a film lead or lead wire is connected to the above through an elastic member at one side surface of the protrusion. A film carrier having a base that is press-fitted to a common electrode on the opposite end surface and integrally connected with a semiconductor element for driving each of the heat generating elements is used to insulate the individual electrodes of the heat generating elements and the base. A thermal head for heat-sensitive recording that connects multiple conductors provided through a base material.
JP11631083A 1983-06-27 1983-06-27 Heat sensitive recording thermal head Pending JPS608083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11631083A JPS608083A (en) 1983-06-27 1983-06-27 Heat sensitive recording thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11631083A JPS608083A (en) 1983-06-27 1983-06-27 Heat sensitive recording thermal head

Publications (1)

Publication Number Publication Date
JPS608083A true JPS608083A (en) 1985-01-16

Family

ID=14683831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11631083A Pending JPS608083A (en) 1983-06-27 1983-06-27 Heat sensitive recording thermal head

Country Status (1)

Country Link
JP (1) JPS608083A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0584952A (en) * 1991-09-30 1993-04-06 Rohm Co Ltd Printing head substrate, printing head equipped therewith and printer using them

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0584952A (en) * 1991-09-30 1993-04-06 Rohm Co Ltd Printing head substrate, printing head equipped therewith and printer using them

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